000
FZNT02 KNHC 032051
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL 
2230 UTC SUN SEP 03 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS

SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE
HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE
MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.

PAN PAN

ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF MEXICO

SYNOPSIS VALID 1800 UTC SUN SEP 03.
24 HOUR FORECAST VALID 1800 UTC MON SEP 04.
48 HOUR FORECAST VALID 1800 UTC TUE SEP 05.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE IRMA NEAR 17.6N 49.8W 969 MB AT 2100 UTC SEP 03 
MOVING W OR 260 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 100 KT 
GUSTS 120 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM N 
SEMICIRCLE...80 NM SE QUADRANT AND 50 NM SW QUADRANT.  SEAS 12 
FT OR GREATER WITHIN 390 NM N SEMICIRCLE AND 150 NM S SEMICIRCLE 
WITH SEAS TO 35 FT. ELSEWHERE WITHIN 300 NM N AND 180 NM S 
SEMICIRCLES OF CENTER WINDS 20 TO 33 KT. SEAS TO 11 FT. 
REMAINDER WATERS FROM 11N TO 29N BETWEEN 40W AND 57W WINDS 20 KT 
OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. 
.24 HOUR FORECAST HURRICANE IRMA NEAR 16.8N 53.5W. MAXIMUM 
SUSTAINED WINDS 110 KT GUSTS 135 KT. TROPICAL STORM FORCE WINDS 
WITHIN 130 NM N SEMICIRCLE...90 NM SE QUADRANT AND 60 NM SW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 390 NM N AND 150 NM S 
SEMICIRCLES WITH SEAS TO 39 FT. ELSEWHERE WITHIN 420 NM N AND 
180 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. 
REMAINDER AREA FROM 10N TO 28N BETWEEN 45W AND 61W WINDS 20 KT 
OR LESS. SEAS TO 11 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE IRMA NEAR 17.3N 58.2W. MAXIMUM 
SUSTAINED WINDS 120 KT GUSTS 145 KT. TROPICAL STORM FORCE WINDS 
WITHIN 150 NM NE QUADRANT...120 NM SE QUADRANT...80 NM SW 
QUADRANT...AND 140 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
390 NM N AND 180 NM S SEMICIRCLES WITH SEAS TO 42 FT. ELSEWHERE 
WITHIN 420 NM N AND 210 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 
8 TO 11 FT. REMAINDER AREA FROM 11N TO 29N BETWEEN 49W AND 
65W...INCLUDING CARIBBEAN PASSAGES...WINDS 20 KT OR LESS. SEAS 
TO 11 FT IN MIXED SWELL. 
.72 HOUR FORECAST HURRICANE IRMA NEAR 19.1N 63.5W. MAXIMUM 
SUSTAINED WINDS 120 KT GUSTS 145 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE IRMA NEAR 21.2N 68.8W. MAXIMUM 
SUSTAINED WINDS 115 KT GUSTS 140 KT.
.120 HOUR FORECAST HURRICANE IRMA NEAR 23.0N 73.5W. MAXIMUM 
SUSTAINED WINDS 115 KT GUSTS 140 KT.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE 
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE 
AND INTENSITY.

.SYNOPSIS AND FORECAST.

.CARIBBEAN 36 HOUR FORECAST N OF 13N E OF 63W...INCLUDING ATLC
PASSAGES...WINDS 20 KT OR LESS. SEAS TO 8 FT IN MIXED N AND E 
SWELL.
.48 HOUR FORECAST LITTLE CHANGE.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.